turbo vs gas mileage
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 53
Likes: 0
turbo vs gas mileage undefined
Guys:
I have a question that someone can answer.I am planning to install a turbo kit to my 99 LS-1 T/A.I will be using 6.0liters heads to lower the compression to 9.1.I have talk to many people and they have told me that i would need to install 42# injectors to make this set up work by the way my goal is to acheive 500RWHP and around 550RWTQ.Using a t-63 or a T76 at 10 psi and a walhboro 255l.Here comes the question USING INJECTORS THAT BIG CAN I GET A DECENT GAS MILEAGE?by the way the car is a daily driver the extra power will be needed for some street racing.Can anyone share some light?
ANOTHER CONCERN WOULD BE FOR TUNNING.
Guys:
I have a question that someone can answer.I am planning to install a turbo kit to my 99 LS-1 T/A.I will be using 6.0liters heads to lower the compression to 9.1.I have talk to many people and they have told me that i would need to install 42# injectors to make this set up work by the way my goal is to acheive 500RWHP and around 550RWTQ.Using a t-63 or a T76 at 10 psi and a walhboro 255l.Here comes the question USING INJECTORS THAT BIG CAN I GET A DECENT GAS MILEAGE?by the way the car is a daily driver the extra power will be needed for some street racing.Can anyone share some light?
ANOTHER CONCERN WOULD BE FOR TUNNING.
12 Second Truck Club
Joined: Feb 2002
Posts: 5,574
Likes: 0
From: Sacramento, CA
Yes you can if your tuning is good.
My truck bone stock never got more than 16.5mpg. After a beefy cam (226/5.35/112) for a 5.3L, 42lb injectors, long tubes, no cats, intake etc. I was still getting 15mpg average. The tuning is key.
That being said, once you floor it with an FI car with that much HP your milage will take a huge dive and so repeatedly doing so on a single tank of gas will decimate you milage
I am getting about 20miles or more less by half a tank then before the turbo.
My truck bone stock never got more than 16.5mpg. After a beefy cam (226/5.35/112) for a 5.3L, 42lb injectors, long tubes, no cats, intake etc. I was still getting 15mpg average. The tuning is key.
That being said, once you floor it with an FI car with that much HP your milage will take a huge dive and so repeatedly doing so on a single tank of gas will decimate you milage
I am getting about 20miles or more less by half a tank then before the turbo.
Originally Posted by jjnitrox
undefined
Guys:
I have a question that someone can answer.I am planning to install a turbo kit to my 99 LS-1 T/A.I will be using 6.0liters heads to lower the compression to 9.1.I have talk to many people and they have told me that i would need to install 42# injectors to make this set up work by the way my goal is to acheive 500RWHP and around 550RWTQ.Using a t-63 or a T76 at 10 psi and a walhboro 255l.Here comes the question USING INJECTORS THAT BIG CAN I GET A DECENT GAS MILEAGE?by the way the car is a daily driver the extra power will be needed for some street racing.Can anyone share some light?
ANOTHER CONCERN WOULD BE FOR TUNNING.
Guys:
I have a question that someone can answer.I am planning to install a turbo kit to my 99 LS-1 T/A.I will be using 6.0liters heads to lower the compression to 9.1.I have talk to many people and they have told me that i would need to install 42# injectors to make this set up work by the way my goal is to acheive 500RWHP and around 550RWTQ.Using a t-63 or a T76 at 10 psi and a walhboro 255l.Here comes the question USING INJECTORS THAT BIG CAN I GET A DECENT GAS MILEAGE?by the way the car is a daily driver the extra power will be needed for some street racing.Can anyone share some light?
ANOTHER CONCERN WOULD BE FOR TUNNING.
i usually got around 20mpg with beeting on it a bit.
when i was stock motor (10:1CR) with my T76 turbo kit my gas mpg dropped to 23mpg were stock it was consistant and 25mpg
so it seemed like dropping CR hurt the worst for gas milage, but i dont think 20mpg was bad for a 512rwhp car.
I get a +3 mpg difference with a turbo, 44# injectors and tuning. Of course, as F8L said, once I hit it, I'm at a previous mpg or worse. It will eventually come back up but takes a while.
Personally, I'm not counting on ever seeing that +3 except on a trip -- I only found this out while sick and when I was having a slight problem and couldn't go to WOT
Personally, I'm not counting on ever seeing that +3 except on a trip -- I only found this out while sick and when I was having a slight problem and couldn't go to WOT
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
...just did a round trip to atlanta on thursday - about 290 miles burn 12.5 gallons - 23mpg. I only laid into it twice on the way up. This was with a/c freezing the car out and cruise at 80-90 mph. On the way back, I stayed at 70-80 with no hammer down time and have a little better than a half tank left. I estimate that it burnt 9 gallons on the way back but wont know until I go fill up. If my estimate is correct, the return got 28 mpg.
